This is a world where "Jewel" people are born with jewels in their eyes and special abilities.They live in a vast mansion called "The Jewelry Box," and their duty is to grant people's wishes. The new arrival at the Jewelry Box is Yuni, a girl with iron ore in her eyes, who is far from a beautiful jewel. Although she started her life as a "Jewel," she was not able to help people as much as she would like. Then she meets Aleclaire, a "Jewel" who is rumored to be a "jewel killer," they seem to be pursuing the unknown dark side of the jewelry box. In order to get closer to the truth, Yuni helps Aleclaire and meets various other "jewels". Little does she know that she herself will eventually become the one to change the world. Follow your wishes and uncover the truth of the beautiful jewelry box world.